ICU-20795 BRS65 ICU4J 65 API signature file

Deleted ICU4J 55 API signature file
diff --git a/icu4j/tools/build/icu4j55.api3.gz b/icu4j/tools/build/icu4j55.api3.gz
deleted file mode 100644
index 403e83c..0000000
--- a/icu4j/tools/build/icu4j55.api3.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:19899b28cab49e55b0cc3526c4edc7f6c00b1221c0ac47e36f03199618c53eb8
-size 54238
diff --git a/icu4j/tools/build/icu4j65.api3.gz b/icu4j/tools/build/icu4j65.api3.gz
new file mode 100644
index 0000000..4fdb513
--- /dev/null
+++ b/icu4j/tools/build/icu4j65.api3.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdb000ed0de7b72f3341564f0e4960ce7a15518758b5d6f4796123709272cc49
+size 62424